Soil‐Rock Slope Stability Analysis under Top Loading considering the Nonuniformity of Rocks

Huang, Xianwen; Yao, Zhishu; Wang, Binghui; Zhou, Aizhao; Jiang, Pengming

doi:10.1155/2020/9575307

Cited by 7 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this landslide model, due to the development of plastic belt, the sliding body are divided into two parts, and the sliding body near the foot of the slope tends to be dispersed. Based on above analysis and studies from Huang et al (2020), it can be concluded that the sliding body with scatter and contain modes and the sliding body with detour and through modes tend to be dispersed and complete, respectively.…”

Section: Typical Development Modes Of Srs Plastic Belt At 50% Rock Contentmentioning

confidence: 92%

Stability analysis of soil-rock slope (SRS) with an improved stochastic method and physical models

et al. 2021

Self Cite

View full text Add to dashboard Cite

With the development of traffic, many highways were built on the top of soil-rock slope (SRS). However, the effect of highway load on the SRS stability has never been studied comprehensively. Therefore, based on the statistical analysis, the stability of SRS considering additional loads of highway was studied. For generating a more realistic slope model, the identification algorithm of rock characteristic parameters was described considering rock ellipticity and long axis inclination angle; the corresponding rock contour establishing method and SRS establishing process were detailed, which could well consider rock content, ellipticity and long axis inclination angle. Applying the stochastic program, 522 stochastic numerical models and corresponding 12 physical models were created to study the influence of rock contents and long axis inclination angles on the SRS stability. The obtained results showed that the additional loads and dispersion degrees of stochastic analyzing results increased with the increase of rock contents, which were related to plastic developing modes (detour, through, scatter and contain modes) of SRS. By adjusting long axis inclination angles of rocks, it was observed that the minimum or maximum additional load was, respectively, obtained when this angle was parallel with or vertical to plastic belt. The effect of long axis inclination angles to the additional load (30.5%, 38.3% and 60.8% for 20%, 40% and 60% rock content) were concluded, which proved the necessity to consider long axis inclination angles of rocks in estimating SRS stability, especially in high rock content. According to numerical analysis results and the failure characteristic of physical models, three typical development modes of plastic belt of SRS were concluded when the load was on the top of slope, including deep, shallow and partial failure of SRS. In addition, it can also be found that the sliding body shows collapse (whole) modes when long axis inclination angles for rocks are vertical (parallel) to the plastic belt.

show abstract

Section: Typical Development Modes Of Srs Plastic Belt At 50% Rock Contentmentioning

confidence: 92%

Stability analysis of soil-rock slope (SRS) with an improved stochastic method and physical models

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Wen et al proposed a new rock contour establishment algorithm that considers the interlocking effect between rocks. The results showed that the N value increased with the increase of rock content [14].…”

Section: Introductionmentioning

confidence: 93%

Stability analysis of ultra-high and steep reinforced soil fills slopes based on strength reduction

Gao,

Zhao,

et al. 2024

Archives of Civil Engineering

View full text Add to dashboard Cite

The research focuses on solving the important problem of slope stability in the field of civil engineering. The study adopted an advanced strength double reduction coefficient method for slope stability analysis, which considers the different influence weights of cohesion and internal friction angle, and reduces them with different reduction coefficients to describe the stability of the slope. The simulation experiment results indicate that the attenuation degree of cohesion and internal friction angle affects slope stability. When the reduction coefficient of cohesion increases to 1.737 and the reduction coefficient of internal friction angle increases to 1.201, the slope is prone to instability and failure, and the safety factor of the calculated result is 1.493. Moreover, when the anti-slip pile is set in the middle of the slope (1/2), and the slope is in a critical state, the bending moment and shear force suffered by the anti-slip pile are both maximum, so the reinforcement effect is also the best.

show abstract

“…The digital image processing (DIP) is a commonly used technology to establish the structure model of soil-rock mixed slope. Huang et al [18] obtained the appearance of the slope shear damage surface by computed tomography to assess the effect of rock distribution on slope stability. Since this modeling approach usually overlooks the actual distribution of blocks, the stochastic irregular block modeling technique becomes an alternative approach.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Soil and Rock Mixed Slope Based on Random Heterogeneous Structure

Wang,

Zhang,

Kang

et al. 2024

Advances in Civil Engineering

View full text Add to dashboard Cite

Due to the complexity in the heterogeneous internal structure and interactions between rocks and soil, the slide of soil–rock mixed slope is usually more complex than that of a homogeneous soil slope. This paper investigated the stability of soil–rock mixed slopes with finite element method (FEM) based on random heterogeneous structure. An image-aided approach was used to generate the 2-D and 3-D digital rocks to ensure the morphology of digital rocks was similar with the real rocks. The 2-D and 3-D soil–rock mixed slopes were then generated by placing the digital rocks into the soil matrix. The generated heterogeneous structures of soil–rock mixed slope were imported into ABAQUS for numerical analysis. The effect of rock content, spatial distributions, material properties, and rock–soil interface on the stability of soil–rock mixed slopes were analyzed. Results show that the stability factor of the soil–rock mixed slope increases with the increase of rock content. The rocks can play a certain degree of antislide effect in the slope. The uneven spatial distribution of rocks has effect on the overall stability of soil–rock mixed slope. This effect is more significant when the rock content is moderate. Rocks distributed in the middle layer of the slope may improve the overall antisliding performance of the slope. The stability factor decreases with the increase of rock density. While the effect of rock elastic modulus on stability of soil–rock mixed slope is relatively limited. The contact condition at the soil–rock interface has effect on the overall stability of soil–rock mixed slope. It is recommended to properly determine the interface properties for stability analysis of soil–rock mixed slope.

show abstract

Soil‐Rock Slope Stability Analysis under Top Loading considering the Nonuniformity of Rocks

Cited by 7 publications

References 38 publications

Stability analysis of soil-rock slope (SRS) with an improved stochastic method and physical models

Stability analysis of soil-rock slope (SRS) with an improved stochastic method and physical models

Stability analysis of ultra-high and steep reinforced soil fills slopes based on strength reduction

Stability Analysis of Soil and Rock Mixed Slope Based on Random Heterogeneous Structure

Contact Info

Product

Resources

About